Home / 900,993.32-1,243,247.80-538,340.12

Finding the Fourth Proportional to 900,993.32, 1,243,247.80 and 538,340.12

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Solution

The fourth proportional to 900,993.32, 1,243,247.80 and 538,340.12 is: 742,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,993.32 : 1,243,247.80 = 538,340.12 : x
  2. Step 2: Convert to fraction form
    900,993.32/1,243,247.80 = 538,340.12/x
  3. Step 3: Cross multiply
    900,993.32x = 1,243,247.80 × 538,340.12
  4. Step 4: Simplify right side
    900,993.32x = 669,290,169,841.74
  5. Step 5: Solve for x
    x = 669,290,169,841.74/900,993.32
  6. Step 6: Final answer
    x = 742,835.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.